Analysis
- max time kernel
101s - max time network
112s - platform
windows10-1703_x64 - resource
win10-20230915-en - resource tags
- submitted
06/10/2023, 16:48
General
- Target Client-built.exe
- Size 3.1MB
- Sample231006-va77jagf49
- SHA256 0bde72f7fac05fa3604180b474d3690c73e792274f9c56d967e47345eef17c3b
Score
10/10
Malware Config
Extracted
Family
-
quasar
Version
-
1.4.1
Botnet
-
Office04
C2
-
37.216.22.195:8888
Mutex
-
331c4a74-ae06-4cbd-b2f0-d55ca25c7830
Attributes
-
encryption_key
E25714CA4A028950408436B93E869C1C1E0812ED
-
install_name
Client.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Quasar Client Startup
-
subdirectory
SubDir
Signatures
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Client-built.exe"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/4436-0-0x00000000003B0000-0x00000000006D4000-memory.dmp
memory/4436-1-0x00007FFCE2B50000-0x00007FFCE353C000-memory.dmp
memory/4436-2-0x000000001B400000-0x000000001B410000-memory.dmp
memory/4436-3-0x000000001BD70000-0x000000001BDC0000-memory.dmp
memory/4436-4-0x000000001BE80000-0x000000001BF32000-memory.dmp
memory/4436-5-0x00007FFCE2B50000-0x00007FFCE353C000-memory.dmp